Leases, Other Commitments, and Contingencies - Summary of Rent Expense from Operating Leases (Detail) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
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| Operating Leases Rent Expense [Abstract] | ||||
| Rent expense from operating leases | $ 10 | $ 24 | $ 34 | $ 71 |
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- References No definition available.
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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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